Elk Ridge Lake, MD
Exceeded the action level in the past
Latest 90th-percentile lead: 1.7 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Elk Ridge Lake at a glance
Elk Ridge Lake serves about 120 people through 38 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Washington County, Maryland. EPA system ID: MD0210006; phone on file: 240-313-2681. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2022 (1.47 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Elk Ridge Lake is 15.75 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.7 ppb |
| 2022 | 1.47 ppb |
| 2021 | 0 (not detected) |
| 2020 | 2.44 ppb |
| 2020 | 2.05 ppb |
| 2019 | 15.75 ppb over 15 |
| 2016 | 4 ppb |
How Elk Ridge Lake compares
Of the 437 Maryland systems with a lead result, the median latest reading is 0 ppb; 3 are over 15 ppb right now and 21 have gone over at some point. Elk Ridge Lake's 1.7 ppb sits at the 69th percentile in Maryland and the 66th nationally (higher means more lead).
Other water systems in Washington County
17 other systems share Washington County; 7 of them have a higher latest lead result than Elk Ridge Lake. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Hagerstown | 92,200 | 0.8 ppb |
| Boonsboro - Keedysville | 4,250 | 3.26 ppb |
| Town Of Smithsburg Distribution System | 2,500 | - |
| Town Of Williamsport Distribution System | 2,400 | - |
| Town Of Hancock | 1,921 | 2.38 ppb |
| Lakeside Village | 1,575 | - |
| Town Of Sharpsburg | 1,360 | 3.6 ppb |
| Town Of Funkstown Distribution System | 1,300 | - |
| Highfield | 1,141 | 3.86 ppb |
| Mount Aetna | 688 | 0 (not detected) |
Next steps for Hagerstown, MD
Test your own tap with a certified lab first-draw sample; Hagerstown, MD may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Elk Ridge Lake whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. More in what a past exceedance means today.